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Abstract

A fiber optic sensor for determining the presence and/or measuring the depth of a first substance capable of transmitting light. The fiber optic sensor includes a plurality of light receiving fibers, a plurality of light transmitting fibers surrounding the light receiving fibers and structure for refracting light from the light transmitting fibers at a predetermined angle for total internal reflection of the light from an interface of the first substance with a second substance.

Patent Number

5,396,079

Assignee

Board of Control of Michigan Technological University, Houghton, Mich.

Application Number

88,545

Date Filed

7-6-1993

Certificate of Correction

No

Issue Date

3-7-1995

Disciplines

Electrical and Computer Engineering | Engineering | Mechanical Engineering

Fiber optic detector and depth sensor and method for doing same

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